CVE-2026-103493

{
  "etk_id": "ETK-2026-230",
  "cve_id": "CVE-2026-103493",
  "display_id": "CVE-2026-103493",
  "ghsa_id": "GHSA-6qqm-669w-6778",
  "euvd_id": "EUVD-2026-90584",
  "status": "published",
  "anchor_state": "anchored",
  "title": "Stored cross-site scripting in JetBrains YouTrack",
  "summary": "JetBrains YouTrack versions before 2026.2.19422 are affected by stored cross-site scripting in Mermaid and LaTeX content. An attacker able to store malicious content may cause script execution when another user views the affected content.",
  "mitigation": "Upgrade YouTrack to version 2026.2.19422 or later. Until upgraded, restrict untrusted users from creating or modifying Mermaid and LaTeX content where feasible.",
  "vendor": "JetBrains",
  "product": "YouTrack",
  "affected": [
    {
      "affected_notes": [],
      "affected_ranges": [
        ">= 0, < 2026.2.19422"
      ],
      "ecosystem": null,
      "fixed_versions": [
        "2026.2.19422"
      ],
      "package_name": "YouTrack",
      "purl": null
    }
  ],
  "cwes": [
    79
  ],
  "cvss_score": 8.1,
  "cvss_src": "cna_vendor",
  "cvss_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N",
  "epss_score": 0.0022,
  "epss_percentile": 0.1192,
  "epss_asof": "2026-10-20",
  "automation": "contextual",
  "check": false,
  "check_confidence_basis": null,
  "exploit": false,
  "pipeline_minutes": 38.61229825,
  "t0_at": "2026-10-01T09:15:26.048000+00:00",
  "signals": {
    "trigger_signal": {
      "at": "2026-10-01T09:15:26.048000+00:00",
      "days": 0,
      "is_lower_bound": false,
      "measured_at": "2026-10-01T09:15:26.048000+00:00",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-103493"
    }
  }
}